bakee



(No Model.)

' 0. M. BAKER.

TURBINE WATER WHEEL.

No. 277.535. Patented May 15,1883.

' WITNESSES INVENTOR, Q am Q ATTORN UNITED STATES PATENT OFFICE.

CYRUS M. BAKER, OF WEST WATERVlLLE, MAINE, ASSIGNOR OF ONE-HALF TO JAMES H. MANDEVILLE, OF WASHINGTON, D. O.

TURBINE WATER-WHEEL.

SPECIFICATION forming part of Letters Patent No. 277,535, dated May 15, 1883.

Application filed September 20, 1882. (No model.)

To all whom it may concern Be it known that I, CYRUS lVL'BAKER, a citizen of the United States, residing in WVest Waterville, in the county of Kennebec, in the State of Maine, have invented a new and useful Improvement upon Turbine Water-Wheels, of which the following specification and its drawing is a full, clear, and exact description.

In the construction of a water-whee1 it is first necessary to consider how to use the water to the best advantage, and then the durability ot'the wheel and its cost of manufacture. It is desirable so to build a wheel that any amount of water can he applied to it without creating any back-pressure to impede its revolutions; to make a shoal wheel in order to have the top of it as far below the head or surface of the water in the flume or dam as it is possible to set the wheel and have it discharge its water freely; to economize water by having a wheel that ven s less water as the labor is increased which is performed by the wheel to have a small wheel which will vent a large amount of water, always having each pound of water to perform one pound of labor with equally as good an effect upon the machinery as the weight of the water would effect the machinery when driven by a wheel of larger diameter--that is to say, to secure with a small wheel the same advantage over the machinery or the labor to be performed thatcan be socured by a larger wheel-and so to construct the floats or blades that a pound of water will have the same effect upon the wheel at any distance from its center, thus equalizing the pressure of the water for the entire length of the floats.

This invention consists in twisting the floats or blades for their entire length from a per pendicular position at the center of the shaft (ifit were possible to extend them in so far) to the circumference of the wheel, Where some of the Water would flow through the wheel with- 5 out performing any labor; but by twisting the blades, as shown, the water acts upon them with a wedge purchase, which increases inwardly'toward the hub, and the circumference of the wheel is rotated just as many feet a sec- 0nd as it would be rotated providedthe water was applied nearer the circumference of the wheel than the hub. Although the water is applied upon the entire length of the floats, yet a jet of water applied near the hub will 6 have the same effect-will rotate the wheel just as fast and just as st-rong-as it would it applied near the circumference of the wheel.

I claim- A water-wheel float or blade twisted for its entire length from a perpendicular at the center of the shaft to an angle of forty-jive degrees at the circumference of the wheel, substantially as herein shown and described.

In testimony whereof I hereunto subscribe my name, in presence of two attesting witnesses, this 4th day of September, A. D. 1882.

CYRUS M. BAKER.

Witnesses CHANDLER BAKER, LUOINDA R. BAKER. 

